SJ 1617-1980 CK-603 Continuous Wave Magnetron SJ1617-1980 Standard Download Decompression Password: www.bzxz.net

Standard of the Fourth Machinery Industry Department of the People's Republic of China
CK-603 Continuous Wave Magnetron
SJ1617-80
Standard of the Fourth Machinery Industry Department of the People's Republic of China
CK-603 Continuous Wave Magnetron
SJ1617-80
This standard applies to CK-603 continuous wave magnetron (hereinafter referred to as magnetron). The tube has a fixed frequency of 2450MHz, an average output power of not less than 5kW, a metal ceramic structure, a magnetic field provided by an external electromagnet, a cathode lead-out end, an energy output end and anode respectively using forced air cooling and water cooling, and energy output from the axial antenna, which can directly excite the BJ-22 rectangular waveguide for microwave heating as a power source. This standard is a supplement to SJ342-78 "General Technical Conditions for Magnetrons". Except for the contents specified in this standard, the others shall be implemented in accordance with the relevant provisions of the general technical conditions.
1. The dimensions and electrode leads of the magnetron (Article 2 of SJ342-78) shall comply with the requirements of the outline drawing. 2. The electrical parameters of the magnetron shall comply with the requirements of the parameter specification table (Article 7, Paragraph 2 of SJ342-78). Either the filament voltage or the filament current can be used as the test condition. 3. Vibration intensity test (Article 5 (3), Article 6 (1) of SJ342-78). Fix the magnetron on the vibration table (the lead wire should be firmly fixed), the vibration acceleration is 2.59, the frequency is 30Hz, and the vibration is continuous for 30 minutes in the vertical and horizontal directions.
After the test, the magnetron should not have mechanical damage, and there should be no free-flowing debris in the tube that causes short circuit and damages the normal operation of the magnetron. The "JQ" electrical parameters should comply with the requirements of the parameter specification table. 4. Climate test (Article 8 of SJ342-78). The electrical parameters tested refer to the "JQ" items specified in the parameter specification table. 5. Filament on-off test (Article 12 of SJ342-78). The filament voltage (or current) of the magnetron is connected for 2.5 minutes according to preheating conditions A or B, and disconnected for 2.5 minutes, for a total of 1000 times. After the test, the filament current (or filament voltage) should meet the requirements of the parameter specification table. 6. Load stability test:
When the load standing wave ratio is 2.7±0.3, the full phase is shifted at a speed of 5 to 7 times/min, and the test time is 15 minutes. During the test, the magnetron should not have unstable phenomena such as mode jumping, vibration stop and loss of control. 7. Life test (Article 26 of SJ342-78). The life test is carried out once every six months (or six months of continuous production), and one is selected each time. Phase shifting should be carried out during the life test.
Appendix: Average working characteristic curve
2. Waveguide excitation cavity
3. Filament voltage and filament current characteristic curve Issued by the Fourth Ministry of Machine Building Industry of the People's Republic of China and implemented on January 1, 1981
Total 7 pages, page 2
Parameter and test name
JQ Filament current
JQ frequency
Output power
Load stability test
Temperature shock test
Vibration intensity test
Climate test
Filament on-off test
Life standard: Output power
Thermal conditions
Over-health unit
SJ1617-80
Times/minute||t t||14502.7±0.35~7
Use limit value
Limit value
Minimum value
Maximum value
Extreme cold girl
≥300
SJ161780
Test method
SJ349-73
SJ1298-78
SJ1297-78
SJ1300—78
082191
Total 7 pages Page 3
Acceptance rules
Note: 1 When the filament current is used as the test condition, its value should be 45A, Uf=7.5~9.5V; When testing related parameters If~37A: preheat according to preheat condition B.
2 The instantaneous maximum current of the filament is ≤80A.
3 After preheating according to the preheating conditions and adding the anode voltage, the filament voltage (or filament current) should gradually drop to the specified value. 1 The magnetic flux density value should be the magnetic field in the action space of the tube after the electromagnet is added to the magnetron. This value is for reference only. Total 7 pages Page 4
SJ1617-80
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CK-603 continuous wave magnetron appearance drawing
Appendix-
1980GS
1800GS
1G70GS
1500GS55%
1350GS
1200GS
1000GS
Working conditions:
SJ1617-80
Average working characteristic curve
Maximum value of anode voltage
Average anode current (A)|| tt||Filament voltage Uf=6V (or If=37A)
Load voltage standing wave ratio S≤1.1
Non-working area
Equal power line
Equal efficiency line
Equal magnetic field line
Total 7 pages, page 5
Total 7 pages, page 6
Appendix 2
SJ1617--80
Waveguide excitation cavity
BJ-22 waveguide
Output window air outlet
Total 7 pages, page 7
SJ1617-80
Appendix 3
Filament voltage, filament current characteristic curve
Filament voltage (V)
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